Salut,

Ce problème n'apparait que sur une machine linux, le même fichier se lit correctement sur windows.

Ci-dessous le message d'erreur:

File "/usr/local/lib/python3.4/dist-packages/Tyf/__init__.py", line 58, in _read_IFD typ = TYPES[typ][0] KeyError: 0

Dispo si besoin d'infos complémentaires

Merci

Salut,

J'ai une erreur avec un geotiff :

/Tyf/gkd.py", line 105, in __init__
ValueError: "GeogGeodeticDatumGeoKey" value must be one of [6016, ... 6001], get 6171 instead

D'après la doc les valeurs entre 6000 et 6199 sont valides, le dictionnaire qu'ils présentent n'est donc pas exhaustif.

Possible de lever cette restriction ?

Hi there,

I am guessing this is a recurrence of previous issues. This is a simple code: import numpy as np import Tyf import tifffile as tiff

filename="Test.tif" outputname="output.tif"

img = tiff.imread(filename) exif_info = Tyf.open(filename)

tiff.imsave(outputname, img) exif_info.save(outputname)

And I got following error: Traceback (most recent call last): File "J:/notebook/simple_test_exif.py", line 12, in exif_info.save(outputname) File "C:\Users\sean_\AppData\Local\Programs\Python\Python37\lib\site-packages\Tyf_init_.py", line 352, in save next_ifd = to_buffer(i, fileobj, next_ifd, byteorder) File "C:\Users\sean_\AppData\Local\Programs\Python\Python37\lib\site-packages\Tyf_init_.py", line 252, in to_buffer next_ifd_offset = dump(obj, fileobj, offset, byteorder) File "C:\Users\sean_\AppData\Local\Programs\Python\Python37\lib\site-packages\Tyf_init_.py", line 250, in dump dump(getattr(i, "%s"%tag), f, i.get(tag).value[0], b) File "C:\Users\sean\AppData\Local\Programs\Python\Python37\lib\site-packages\Tyf_init_.py", line 251, in dump return write_IFD(i,f,o,b) File "C:\Users\sean\AppData\Local\Programs\Python\Python37\lib\site-packages\Tyf_init_.py", line 162, in write_IFD pack(byteorder+fmt, fileobj, value) File "C:\Users\sean\AppData\Local\Programs\Python\Python37\lib\site-packages\Tyf_init_.py", line 14, in pack = lambda fmt, fileobj, value: fileobj.write(struct.pack(fmt, *value)) struct.error: ubyte format requires 0 <= number <= 255

I've also attached the zipped TIF file for your reference. Could you please take a look?

Thanks, Sean

test.zip

I'm testing a script to read and write a 16bit RGB-colored tiff file and find some error on data type. My test script is very simple like:

tif = Tyf.open(file_name)
tif.save(new_file_name)

and result in an error:

struct.error: ubyte format requires 0 <= number <= 255

After digging into the source file I find that data type of some tags might be wrong. For example in tags.py line 200, the ISOSpeedRatings tag type is set as 1, while it is of type 3 when read from a tiff file (use function _read_IFD in __init__.py). Several data type mismatches has been found, including ExposureProgram, MeteringMode, Flash, ColorSpace, FocalPlaneResolutionUnit, CustomRendered, ExposureMode, WhiteBalance, SceneCaptureType.

I'm not sure whether it is a problem of a special file format or of the OS platform, or anything else. Does anyone has met similar problems?

Simple operation of (re)saving TIFF image file

i1 = Tyf.open( '/Users/xatx/Desktop/TEST.tiff' ) i1.save( '/Users/xatx/Desktop/TESTTyf.tiff' )

produces a corrupted file.

Ran into current pip: https://pypi.org/project/Tyf/ @ 1.3.2

Ran into bugger:

WARNING:  Traceback (most recent call last):
  File "<string>", line 29, in __plpython_procedure_find_exif_19256322
  File "/usr/local/lib/python3.5/dist-packages/Tyf/ifd.py", line 75, in decode
    return self._decoder(self.value)
  File "/usr/local/lib/python3.5/dist-packages/Tyf/decoders.py", line 54, in <lambda>
    _0x132 = _0x9003 = _0x9004 = lambda value: datetime.datetime.strptime(_2(value).decode(), "%Y:%m:%d %H:%M:%S")
AttributeError: 'str' object has no attribute 'decode'

Reviewed current code and this was supposed to be fixed. Current pip is old code? Not sure.

I have an issue with the sub IFD InteropIFD : when I load a jpg and save it, it is missing or shown as corrupt in exiftool after (with this example, it's corrupted). I guess it's not the expected behaviour.

Before :

Interoperability Index          : R98 - DCF basic file (sRGB)
Interoperability Version        : 0100

after :

Warning                         : Bad InteropIFD directory

Steps :

jpg = Tyf.open('testori.jpg')
#Print some tags
for i in jpg.exif.tags():
    print(i)
# eventually, (re)write 3-4 tags
jpg.save('testinterop.jpg')

The source file might be corrupted, but it should be original from the smartphone.

Files : testori testinterop

Python 3.5.2 64bit Win

I may have missed the explanation about this, but I wanted to understand the format used in tags.py and I had to find what is the second field, then try to see where those values are used. I figured out it's Type after following code. Maybe a comment could be added to explain the format ? Also I think the type specification system used, ie. list of integers, is hard to follow and should be written as enum if possible ?

Just my feedback from trying to understand how it works, but it might makes other/future maintainers life easier.

Hello,

at first thanks for this library!!!

But i have little problem with some images. I wrote a script to add EXIF-Tags with GPS to Images which don't have any. This works ok as far i can see

part of script:

        img = Image.open(os.path.join('pictures', filename))
        exf = img._getexif()
        exf[0]['GPSLatitude'] = lpi[2]
        exf[0]['GPSLongitude'] = lpi[1]
        exf[0]['GPSAltitude'] = 0.00
        exf[1]['GPSLatitude'] = lpi[2]
        exf[1]['GPSLongitude'] = lpi[1]
        exf[1]['GPSAltitude'] = 0.00
        img.save(os.path.join('tagged', 'tagged_' + filename), ifd=exf)

but jpg.exif.dump_location doesnt create images of location. For any photo taken with my Iphone which adds GPS-Tags automatically it works.

What did i miss??

Thanks Peter

Hi, Windows 10, python 3.5, blender 2.77, Pillow throw an "I/O operation on closed file" exception on exif = Tyf.open(filepath) when filepath is a jpg.

Seem to be a magic number issue

Hi, I just stumbled across your Tyf library. I need to write exif data to tiff files. But I can't figure out how to do it. Could you kindly give me a short example on how to write a UserComment to a tif file, so that the rest of the exif info is preserved? Thanks...